Hardware Store man advisements

• Two prong outlet, three to two prong gray adapter, wire connectors
  1. Label with vinyl letters "INSURANCE  DISALLOW" and "VARIETY   BAG"
  2. Leviton 223-I 15 Amp, 125 Volt, Duplex Receptacle, Residential Grade, Non-Grounded, Ivory & Leviton, Gray, Grounding Adapter
  3. Gardner Bender Assorted WireGard, 3 Gray, 4 Blue, 6 Orange, 6 Yellow, 6 Red; 25/Bag

I brought parts to the store. I showed the receptacle to the hardware store guy and he informed me that when an insurance company finds you had used a gray adapter before the fire, they will not allow it.

I asked for a good choice connector for old electrical wiring. He said he "always recommended this" assortment.